신공정에 의한 초미립 텅스텐계 복합분말 제조
Fabrication of Ultrafine Tungsten-based Composite Powders by Novel Reduction Process
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A novel chemical method was evaluated to fabricate the ultrafine tungsten heavy alloy powders with baterbase solution made from the ammonium metatungstate (AMT), iron(II) chloride tetrahydrate (FeCl2·4H2O), nickel(II)chloride hexahydrate (NiCl2·6H2O) as source materials and the sodium tungstate dihydrate (NaWO4·2H2O) as Cl-reductant. In the preparation of mixtures the amounts of the source components were chosen so as to obtain alloy of 93W-5Ni-2Fe composition(wt.%). The obtained powders were characterized by X-ray diffraction, XRF, field-emission scanning microscope (FESEM), and chemical composition was analyzed by EDX.
Abstract
A novel chemical method was evaluated to fabricate the ultrafine tungsten heavy alloy powders with baterbase solution made from the ammonium metatungstate (AMT), iron(II) chloride tetrahydrate (FeCl2·4H2O), nickel(II)chloride hexahydrate (NiCl2·6H2O) as source materials and the sodium tungstate dihydrate (NaWO4·2H2O) as Cl-reductant. In the preparation of mixtures the amounts of the source components were chosen so as to obtain alloy of 93W-5Ni-2Fe composition(wt.%). The obtained powders were characterized by X-ray diffraction, XRF, field-emission scanning microscope (FESEM), and chemical composition was analyzed by EDX.
참고문헌 (10)
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